Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. The middle center 3x3 Box is invalid. Go back and make a different choice.

 

8
    
      6
       
5
7
4
3
6
9
2
3
9
3
       
      6
    
2
1
5
9
4
       
      6
    
8
    
       
    
9
4
8
6
2
    
       
    
5
3
6
9
9
7
6
1
2
       
   6
       
5
       
      6
    
3
8
2
5
9
6
3
7
1
6
4
3
1
5
8
7
6
2
9
6
5
7
4
9
2
3
    
       
    
    
       
    
2
3
4
6
8
1
5
9
7
9
1
8
3
7
5
2
4
6

 

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